| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 54°F | 44°F | 4.3" |
| February | 31°F | 53°F | 41°F | 4.1" |
| March | 39°F | 64°F | 50°F | 7.1" |
| April | 48°F | 72°F | 59°F | 5.0" |
| May | 55°F | 77°F | 66°F | 5.2" |
| June | 65°F | 87°F | 76°F | 3.9" |
| July | 70°F | 91°F | 80°F | 6.4" |
| August | 71°F | 93°F | 81°F | 4.9" |
| September | 64°F | 87°F | 75°F | 3.3" |
| October | 56°F | 77°F | 65°F | 8.3" |
| November | 41°F | 65°F | 52°F | 5.3" |
| December | 35°F | 56°F | 44°F | 7.4" |
| Index | Littleton | North Carolina | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 1,869,560 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 325 |
| Days with moderate air quality | 38 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.160% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.180% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Roanoke Rapids, NC | 14,926 | 36 | 28.0% |
| Gasburg, VA | 523 | 36 | 28.0% |
| South Rosemary, NC | 2,927 | 36 | 28.0% |
| Macon, NC | 70 | 36 | 28.0% |
| Warrenton, NC | 1,068 | 36 | 28.0% |
| Littleton, NC | 530 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Mesquite Creek, AZ | 530 | 13 | 74.0% |
| Rough and Ready, CA | 530 | 44 | 12.0% |
| Reddick, FL | 530 | 38 | 24.0% |
| New Boston, IL | 530 | 32 | 36.0% |
| Crestview, KY | 530 | 54 | 8.0% |
| Littleton, NC | 530 | 36 | 28.0% |